Question

which of the following roles does the barrier function play in the skin?
select the correct response:
it contains nerve endings that make the skin sensitive to touch and pressure.
it protects sensitive cells in the skin from the destructive effects of the suns ultraviolet light.
it supplies the skin with oxygen and nutrients.
it keeps the skin moist by preventing water evaporation.

Explanation:

The barrier function of the skin related to moisture is about preventing water evaporation to keep skin moist. The option "It keeps the skin moist by preventing water evaporation" matches this function. Other options: containing nerve endings is about sensation, protecting from UV is about UV protection, and supplying oxygen/nutrients is about circulation/nutrition, not the barrier's moisture - related role.

Answer:

It keeps the skin moist by preventing water evaporation.